Two-photon emissive dyes based on push-pull purines derivatives: toward the development of new photoluminescence bioprobes

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dc.creatorCocca, Leandro Henrique Zucolotto
dc.creatorAbegão, Luis Miguel Gomes
dc.creatorSciuti, Lucas Fiocco
dc.creatorVabre, Roxane
dc.creatorSiqueira, Jonathas de Paula
dc.creatorKamada, Kenji
dc.creatorMendonça, Cleber Renato
dc.creatorPiguel, Sandrine
dc.creatorDe Boni, Leonardo
dc.date.accessioned2024-03-04T15:47:38Z
dc.date.available2024-03-04T15:47:38Z
dc.date.issued2020
dc.description.abstractFluorescent organic molecules have received great attention due to their largest applications, for example, in DNA and RNA spectroscopies studies, development of new photoluminescence bioprobes, and applications in fluorescence spectroscopy. In specific, purine base analog molecules present high fluorescence quantum yields and significant Stokes shift. Furthermore, the addition of push–pull structures at the purine core could increase the photoluminescence properties, making candidates for photoluminescence bioprobes. To consider this, a complete spectroscopic study was performed on nine push–pull purines, distinguished by different push–pull structures. In specific, for this research, the two-photon absorption (2PA) study showed that the compounds present induced two-photon fluorescence at the therapeutic window, desired for fluorescence microscopy. The brightness property was evaluated, indicating that all chromospheres are fluorescent by a 2PA process. Additionally, ultrafast transient absorption was performed to elucidate contribution of the excited states on the 2PA spectra, and quantum chemistry calculations were performed to corroborate the experimental results.
dc.identifier.citationCOCCA, Leandro H. Z. et al. Two-photon emissive dyes based on push-pull purines derivatives: toward the development of new photoluminescence bioprobes. Journal of Physical Chemistry C, Washington, v. 124, n. 23, p. 12617−12627, 2020. DOI: 10.1021/acs.jpcc.0c01859. Disponível em: https://pubs.acs.org/doi/10.1021/acs.jpcc.0c01859. Acesso em: 29 fev. 2024.
dc.identifier.doi10.1021/acs.jpcc.0c01859
dc.identifier.issn1932-7447
dc.identifier.issne- 1932-7455
dc.identifier.urihttps://pubs.acs.org/doi/10.1021/acs.jpcc.0c01859
dc.language.isoeng
dc.publisher.countryEstados unidos
dc.publisher.departmentInstituto de Física - IF (RMG)
dc.rightsAcesso Restrito
dc.titleTwo-photon emissive dyes based on push-pull purines derivatives: toward the development of new photoluminescence bioprobes
dc.typeArtigo

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